Improvement in bbll-putil



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JAMEs-eA vEY AND MATTHEW HJKIMBAL'L, or SANFRANCISCO, a 1 CALIFORNIA.

Letters Patent No. 83,622, dated November 3, 1868.

IMPROVEMENT IN BELL-PULL. I

Be it known that we, Jmuns GAnvnY and MAT-- THEW H. KIMBALL, both of the city and county of San Francisco, and State 'of California, have invented a new and improved Pull-Bell or Gong; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, making a part of this specification, in which- Figure 1 is a sectional view of our bell, showing its working parts;

Figure 2 is a plan of same, with gong removed;

Figure 3, a second arrangement of parts, of which our bell is susceptible; and

. Figure 4 shows a detached detail of that part in the which .our invention properly consists.

'lJo enable others skilled inthe art to make and use our invention, we will proceed to describe its construction and operation, as follows, to wit:

We construct our bell or gong, having a circular plate, A, of cast-iron, which fastens, by screws, to the wopd-work.

From the centre of this plate, therod or bolt B pro jects a proper distance outward, and the sounding-gong O is attached thereto, bybeing screwed on to its end. (See fig. 1.) V

Projecting from the plate'A, at or near its rim, is a wroughtiron pin, D, upon which the striking-hammer E hangs, this hammer, which'may be of brass, having,

its striking-power given bythe usual spiral spring F,

.which is wound around the pin D, and, catching on the arm with one end,'has its other end bearing against the centre-rod or bolt B. V v

The striking-hammer E has a continuating arm or lever, c, as'shown in figs. 2 and 3, the end of which rests on the pull-bar,G,-immediately at the point of the lifting wedge H,the end of this arm being rounded off, and may either be solid with the arm itself, or it may be a wrought-iron pin, 1), riveted into the arm, as shown in figs. 3 and 4.

At the extreme end of the pull-bar G, is fastened,

by rivets, at that side which is oppositethe str-ikinghammer, a lug, I, through which passes the pin K.

'Upon this pin, the lifting-wedge H is hung. This wedge, in the which our1invention principally consists, may be made of either brass'or steel, and is of equal width with the pull-bar G. a It is made so as that the angle formed by its inclined face with the pull-bar may be about thirty-five degrees, when hanging on the pin K, and resting on the pull-bar. a

The inclined plane formed by the wedge, and whereon the arm eslides upward'whenthe bar G is pulled for-- ward, is made to extend slightly above and beyond the centre of tlie fulcrum-pin K, so as that, when the point of t e arm e has attained the extreme height of the inclined plane formedbytlie wedge, it; may have passed over the-centre ofthe pin K, and then, naturally tipping the wedge, release itself, and drop down, cansing the hammer to impinge against' the gong O, and thus ring the bell.

We provide a lug or stop, L, cast on the plate A,

against which the lifting-wedge H may strike, when pulled forward, and, in the act of tipping, it may have released the hammer E, the object of this stop being so prevent the lifting-wedge from being tipped entirely over.

A similar stop, S, is provided for the hammer e.

'lhe pull-bar G, which may be a square bar of wroughtiron, passes through a guide-boss in the plate A, thence throughthe wood-work and usual guide-plate N, ter-' minating in the usual knob or handle 0,

This pull-bar G, when pulled outward and released, rebounds, by the action of the wire spring P, (see figs. 1 and 2,) which is attached to the plate A, and hooks around the pin K.

We have thus described our ifiventiomas adapted for house, door, call-bells, 8pc.

We will now describe another arrangement of the parts, as more paiticularly adapted for hotel, steamboat, alarm-gongs, 86c.

To the pull-bar G are attached, in similar manner as before described, the lug I and lifting-wedge H. But since, in this arrangement, it is required that the wedge should work on the side of the pnll-bar, instead of, as before, on the top, a small spiral spring, T, is necessary to connect the point of the wedge H with the pull-bar, the object being to return thewedge to position after it has tipped and thrown the striking-hammer.

The action is more particularly exemplified in fig. 3, by the dotted lines, showing the wedge andstrikinghammer in their relative positions when the hammer is in the act of being thrown.

We may also, in this arrangement; substitute for the springs F and P, in the first arrangement, other springs,

the point of the arm 0, which re'stson the pull-bar,

when, by its forward motion, this arm 0 is made to traverse up the inclined plane formed by the wedge, until, reaching the summit, it may have passed over thecentre of the pin K, when the spring attached to the arm 0, tending to draw it back, causes the wedge to tip, and, releasing the hammer, it rebounds, and strikesthe bell or gong.

The pull-bar is now released, and, being brought back by its attached spring, it meets, in its return, the projecting arm 0, which strikes against the under side of the wedge H, but this wedge immediately rises and passes over it, and, assuming, its original'position, is again ready torepeat the operation; this operation being substantially similar with both the arrangements .Of parts, as hereinbefore described.

Claim. manner herein described, and for the purposes befdre What we claim as our invention, and desire to mentionedsecure by Letters Patent, is- JAMES GARVEY.

The application of: the lifting-wedge H, combined WYEHBSSBS; MATTHEW K MBALL. with the lug I, which, being attached to the pull-bar GEO. PARDY,.

Gr, operates, with it, directly on the hammer E, in the One V. SAWYER. 

